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Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2018
Components of purchased intangible assets |  |  |  |  |
Gross Carrying Amount | $ 246,422 |  | $ 246,422 |  | $ 239,192
Accumulated Amortization and Impairment | 222,604 |  | 222,604 |  | 219,859
Total | 23,818 |  | 23,818 |  | 19,333
Other intangible assets, amortization expense | 1,300 | $ 1,200 | 2,700 | $ 2,400 |
Existing technology |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Gross Carrying Amount | 166,029 |  | 166,029 |  | 160,859
Accumulated Amortization and Impairment | 146,001 |  | 146,001 |  | 144,202
Total | 20,028 |  | $ 20,028 |  | 16,657
Existing technology | Minimum |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Range of Useful Lives |  |  | 4 years |  |
Existing technology | Maximum |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Range of Useful Lives |  |  | 7 years |  |
Trade name/Trademark |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Gross Carrying Amount | 21,073 |  | $ 21,073 |  | 20,993
Accumulated Amortization and Impairment | 20,143 |  | 20,143 |  | 20,060
Total | 930 |  | $ 930 |  | 933
Trade name/Trademark | Minimum |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Range of Useful Lives |  |  | 5 years |  |
Trade name/Trademark | Maximum |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Range of Useful Lives |  |  | 7 years |  |
Customer relationships |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Gross Carrying Amount | 58,050 |  | $ 58,050 |  | 56,680
Accumulated Amortization and Impairment | 55,388 |  | 55,388 |  | 55,136
Total | 2,662 |  | $ 2,662 |  | 1,544
Customer relationships | Minimum |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Range of Useful Lives |  |  | 4 years |  |
Customer relationships | Maximum |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Range of Useful Lives |  |  | 7 years |  |
Other |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Gross Carrying Amount | 1,270 |  | $ 1,270 |  | 660
Accumulated Amortization and Impairment | 1,072 |  | 1,072 |  | 461
Total | $ 198 |  | $ 198 |  | $ 199
Other | Minimum |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Range of Useful Lives |  |  | 1 year |  |
Other | Maximum |  |  |  |  |
Components of purchased intangible assets |  |  |  |  |
Range of Useful Lives |  |  | 5 years |  |

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